I If the Null Hypothesis States That There Is No

question 110

Multiple Choice

i. If the null hypothesis states that there is no difference between the mean income of males and the
Mean income of females, then the test is one-tailed.
ii. If we are testing for the difference between two population means, it is assumed that the sample
Observations from one population are independent of the sample observations from the other
Population.
iii. If we are testing for the difference between two population means, it is assumed that the two
Populations are approximately normal and have equal variances.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

Ethics Audit

A systematic evaluation of an organization's ethics programs and practices, aiming to identify potential areas for improvement and ensure compliance with ethical standards.

Credibility

The quality of being trusted and believed in, often influenced by a person's or organization’s reputation and their ability to provide reliable and accurate information.

Objectivity

The state or quality of being true even outside of a subject's individual biases, interpretations, feelings, and imaginings.

Retaliation

The action of returning a military attack; counterattack or the act of seeking revenge upon another.